'\" t
.TH "SD\-DEVICE" "3" "" "systemd 257.1" "sd-device"
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.SH "NAME"
sd-device \- API for enumerating and introspecting local devices
.SH "SYNOPSIS"
.sp
.ft B
.nf
#include <systemd/sd\-device\&.h>
.fi
.ft
.HP \w'\fBpkg\-config\ \-\-cflags\ \-\-libs\ libsystemd\fR\ 'u
\fBpkg\-config \-\-cflags \-\-libs libsystemd\fR
.SH "DESCRIPTION"
.PP
sd\-device\&.h
is part of
\fBlibsystemd\fR(3)
and provides an API to introspect and enumerate devices on the local system\&. It provides a programmatic interface to the database of devices and their properties mananaged by
\fBsystemd-udevd.service\fR(8)\&. This API is a replacement for
\fBlibudev\fR(3)
and
libudev\&.h\&.
.PP
See
.RS 4
\fBsd_device_get_syspath\fR(3),
.RE
.RS 4
\fBsd_device_ref\fR(3)
.RE
for more information about the functions available\&.
.SH "NOTES"
.PP
Functions described here are available as a shared library, which can be compiled against and linked to with the
\fBlibsystemd\fR\ \&\fBpkg-config\fR(1)
file\&.
.PP
The code described here uses
\fBgetenv\fR(3), which is declared to be not multi\-thread\-safe\&. This means that the code calling the functions described here must not call
\fBsetenv\fR(3)
from a parallel thread\&. It is recommended to only do calls to
\fBsetenv()\fR
from an early phase of the program when no other threads have been started\&.
.SH "SEE ALSO"
.PP
\fBsystemd\fR(1), \fBsd-event\fR(3), \fBudevadm\fR(8)
